Superfamily:
Trichostrongyloidea
Strongyloidea
Ancylostomatoidea
Metastrongyloidae
Ascaridoidea
Oxyuroidea
Rhabditoidea
Trichinelloidea
Spiruroidea
Filaroidea
Angiostrongylidae
Filarioidea
Trichuris
Ascaridida